IfcResourceConstraintRelationship

IfcResourceConstraintRelationship

实体定义

IfcResourceConstraintRelationship是一种关系实体，它使约束能够与一个或多个资源级对象相关。

IfcResourceConstraintRelationship允许将约束的规范应用于许多实体类型。一个重要的情况是将约束应用于特性。因此，所应用的约束使财产能够承载识别需求的值以及识别满足这些需求的值。

 

IFC2x2中的新实体。

IFC4  从IfcPropertyConstraintRelationship重命名并扩展为适用于所有资源级实体。子类型来自IfcResourceLevelRelationship。

 

Attribute definitions

#	Attribute	Type	Cardinality	Description	C
3	RelatingConstraint	IfcConstraint	[1:1]	The constraint that is to be related.	X
4	RelatedResourceObjects	IfcResourceObjectSelect	S[1:?]	The properties to which a constraint is to be related.	X

 

 

 

 

Attribute inheritance

#	Attribute	Type	Cardinality	Description	C
IfcResourceLevelRelationship
1	Name	IfcLabel	[0:1]	A name used to identify or qualify the relationship.	X
2	Description	IfcText	[0:1]	A description that may apply additional information about the relationship.	X
IfcResourceConstraintRelationship
3	RelatingConstraint	IfcConstraint	[1:1]	The constraint that is to be related.	X
4	RelatedResourceObjects	IfcResourceObjectSelect	S[1:?]	The properties to which a constraint is to be related.	X

 

 

 

EXPRESS Specification

ENTITY IfcResourceConstraintRelationship
 SUBTYPE OF (IfcResourceLevelRelationship);
  RelatingConstraint : IfcConstraint;
  RelatedResourceObjects : SET [1:?] OF IfcResourceObjectSelect;
END_ENTITY;

 

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